Yunnan Metallurgical Group, which controls Yunnan Aluminium Co Ltd, will be merged into China Copper Co, a joint venture between Chinalco and the Yunnan provincial government.
The United States Steel Corp is re-hiring or recruiting around 500 workers as it readies for production in mid-June at a blast furnace it idled in 2015.
European leaders sought unity on Wednesday toward threatened U.S. import tariffs on steel and aluminium, balancing the views of those most fearful of a trade war and those determined not to be bullied into concessions.
Alcoa and Rio Tinto announced the launching of Elysis, a joint venture company whose goal is to push towards commercial production a newly discovered, carbon-free aluminum smelting process.
The smelter, which produces some 430,000 metric tonnes of aluminum annually, has been operating at reduced capacity by non-union workers since Jan. 11.